Texan, I questioned that thinking also (3750 wheels & 4080 tires). I run my 80R16 tires @ 105psi but our heaviest loaded tire is under the reefer (loaded 3250#). Really no need for heavier wheels - 3,750x4=15,000# then subtract what is on the pin.
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2018 Montana 3791RD (SOLD)
2017 Ram 3500 DRW 6.7 Cummins Aisin, B&W RVK3600 (SOLD)
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